DP Constable Time-Speed-Work Bilingual Test 4

Time, Speed & Work / समय, चाल और कार्य practice in Hindi-English with original DP Constable style questions, timer, negative marking and explanation review.

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DP Constable Chapter Test

DP Constable Time-Speed-Work Bilingual Test 4

Time-work, pipes, speed-distance, trains, boats and man-day questions. Test 4 has original Hindi-English DP Constable style questions with explanations. Use it as a short Delhi Police CBT drill: solve, submit, review every explanation, then move to the next chapter set.

Questions

Duration

8 min

Marking

+1 / -0.25 (Max 5)

Sections

Time, Speed & Work / समय, चाल और कार्य | 5 questions

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Preview all 5 questions in DP Constable Time-Speed-Work Bilingual Test 4 (no login required)

Numerical Ability / संख्यात्मक योग्यता — Time and Work / समय-कार्य
1. A finishes in 14 days and B in 18 days. Together time? / A 14 दिन और B 18 दिन में कार्य करते हैं। साथ में समय?
- A. 6.88 days
- B. 7.88 days (Correct)
- C. 8.88 days
- D. 9.88 days
Explanation: Together time = ab/(a+b). / संयुक्त समय ab/(a+b) से मिलता है।
Numerical Ability / संख्यात्मक योग्यता — Efficiency / दक्षता
2. A:B efficiency is 4:4; together they finish in 7 days. A alone? / दक्षता 4:4, साथ में 7 दिन। A अकेला?
- A. 12 days
- B. 14 days (Correct)
- C. 16 days
- D. 18 days
Explanation: Total work is 56; A time = work/4. / दक्षता से कुल कार्य निकालें।
Numerical Ability / संख्यात्मक योग्यता — Pipes / पाइप
3. A fills a tank in 6 hours and B empties it in 12 hours. Net filling time? / A 6 घंटे में भरता और B 12 घंटे में खाली करता है। समय?
- A. 10 hours
- B. 12 hours (Correct)
- C. 14 hours
- D. 16 hours
Explanation: Net rate = 1/6 - 1/12 = 1/12. / शुद्ध दर से समय 12 घंटे है।
Numerical Ability / संख्यात्मक योग्यता — Speed-Distance / चाल-दूरी
4. A vehicle runs at 78 km/h for 6 hours. Distance? / वाहन 78 किमी/घंटा से 6 घंटे चलता है। दूरी?
- A. 390 km
- B. 468 km (Correct)
- C. 546 km
- D. 624 km
Explanation: Distance = speed x time = 468 km. / दूरी = चाल x समय।
Numerical Ability / संख्यात्मक योग्यता — Trains / रेल
5. A 220 m train crosses a pole in 12 s. Speed in km/h? / 220 मी ट्रेन खंभे को 12 सेकंड में पार करती है। चाल?
- A. 61 km/h
- B. 66 km/h (Correct)
- C. 71 km/h
- D. 76 km/h
Explanation: Speed = distance/time, then multiply by 18/5. / मी/से को किमी/घंटा में बदलें।